Exhaust heat recovery boiler
US-11802744-B2 · Oct 31, 2023 · US
Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F23J3/00 |
| Official title | Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers |
| Display label | Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers |
| Total patents | 23 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 3 |
| 2023 | 2 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-11802744-B2 · Oct 31, 2023 · US
US-11719433-B2 · Aug 8, 2023 · US
US-2022065447-A1 · Mar 3, 2022 · US
US-2022034609-A1 · Feb 3, 2022 · US
US-11226095-B2 · Jan 18, 2022 · US
US-2021325132-A1 · Oct 21, 2021 · US
US-11124718-B2 · Sep 21, 2021 · US
US-10962223-B2 · Mar 30, 2021 · US
US-2021080104-A1 · Mar 18, 2021 · US
US-2020240635-A1 · Jul 30, 2020 · US
US-2019264117-A1 · Aug 29, 2019 · US
US-2019078779-A1 · Mar 14, 2019 · US
US-10119700-B2 · Nov 6, 2018 · US
US-2017175568-A1 · Jun 22, 2017 · US
US-9593849-B2 · Mar 14, 2017 · US
US-2017008765-A1 · Jan 12, 2017 · US
US-2016223187-A1 · Aug 4, 2016 · US
US-9353944-B1 · May 31, 2016 · US
US-2016097528-A1 · Apr 7, 2016 · US
US-2016084498-A1 · Mar 24, 2016 · US